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GeForce GTX 570 vs Radeon HD 4850 X2 512MB

Intro

The GeForce GTX 570 comes with a core clock speed of 732 MHz and a GDDR5 memory frequency of 950 MHz. It also features a 320-bit bus, and makes use of a 40 nm design. It features 480 SPUs, 60 TAUs, and 40 Raster Operation Units.

Compare all that to the Radeon HD 4850 X2 512MB, which comes with core speeds of 625 MHz on the GPU, and 993 MHz on the 512 MB of GDDR3 memory. It features 800(160x5) SPUs as well as 40 TAUs and 16 ROPs.

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GTX 570 219 Watts
Radeon HD 4850 X2 512MB 250 Watts
Difference: 31 Watts (14%)

Memory Bandwidth

The GeForce GTX 570 should in theory perform a little bit faster than the Radeon HD 4850 X2 512MB in general. (explain)

GeForce GTX 570 152000 MB/sec
Radeon HD 4850 X2 512MB 127104 MB/sec
Difference: 24896 (20%)

Texel Rate

The Radeon HD 4850 X2 512MB is just a bit (approximately 14%) better at AF than the GeForce GTX 570. (explain)

Radeon HD 4850 X2 512MB 50000 Mtexels/sec
GeForce GTX 570 43920 Mtexels/sec
Difference: 6080 (14%)

Pixel Rate

The GeForce GTX 570 will be a lot (about 46%) more effective at full screen anti-aliasing than the Radeon HD 4850 X2 512MB, and also will be capable of handling higher screen resolutions without losing too much performance. (explain)

GeForce GTX 570 29280 Mpixels/sec
Radeon HD 4850 X2 512MB 20000 Mpixels/sec
Difference: 9280 (46%)

Please note that the above 'benchmarks' are all just theoretical - the results were calculated based on the card's specifications, and real-world performance may (and probably will) vary at least a bit.

One or more cards in this comparison are multi-core. This means that their bandwidth, texel and pixel rates are theoretically doubled - this does not mean the card will actually perform twice as fast, but only that it should in theory be able to. Actual game benchmarks will give a more accurate idea of what it's capable of.

Price Comparison

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GeForce GTX 570

Amazon.com

Check prices at:

Radeon HD 4850 X2 512MB

Amazon.com

Check prices at:

Please note that the price comparisons are based on search keywords - sometimes it might show cards with very similar names that are not exactly the same as the one chosen in the comparison. We do try to filter out the wrong results as best we can, though.

Specifications

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Model GeForce GTX 570 Radeon HD 4850 X2 512MB
Manufacturer nVidia AMD
Year December 2010 Nov 7, 2008
Code Name GF110 R700
Memory 1280 MB 512 MB (x2)
Core Speed 732 MHz 625 MHz (x2)
Memory Speed 3800 MHz 1986 MHz (x2)
Power (Max TDP) 219 watts 250 watts
Bandwidth 152000 MB/sec 127104 MB/sec
Texel Rate 43920 Mtexels/sec 50000 Mtexels/sec
Pixel Rate 29280 Mpixels/sec 20000 Mpixels/sec
Unified Shaders 480 800(160x5) (x2)
Texture Mapping Units 60 40 (x2)
Render Output Units 40 16 (x2)
Bus Type GDDR5 GDDR3
Bus Width 320-bit 256-bit (x2)
Fab Process 40 nm 55 nm
Transistors 3000 million 956 million
Bus PCIe x16 PCIe 2.0 x16 (PCIe bridge)
DirectX Version DirectX 11 DirectX 10.1
OpenGL Version OpenGL 4.1 OpenGL 3.0

Memory Bandwidth: Memory bandwidth is the largest amount of data (measured in MB per second) that can be transferred past the external memory interface in a second. It's calculated by multiplying the card's bus width by the speed of its memory. In the case of DDR RAM, it must be multiplied by 2 again. If DDR5, multiply by 4 instead. The higher the bandwidth is, the faster the card will be in general. It especially helps with anti-aliasing, HDR and higher screen resolutions.

Texel Rate: Texel rate is the maximum amount of texture map elements (texels) that are applied in one second. This figure is worked out by multiplying the total texture units by the core speed of the chip. The higher the texel rate, the better the card will be at handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels processed per second.

Pixel Rate: Pixel rate is the maximum amount of pixels the graphics card can possibly write to the local memory per second - measured in millions of pixels per second. The number is worked out by multiplying the number of ROPs by the the core clock speed. ROPs (Raster Operations Pipelines - also called Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel output rate is also dependant on lots of other factors, especially the memory bandwidth of the card - the lower the memory bandwidth is, the lower the ability to get to the max fill rate.

Display Prices

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GeForce GTX 570

Amazon.com

Check prices at:

Radeon HD 4850 X2 512MB

Amazon.com

Check prices at:

Please note that the price comparisons are based on search keywords - sometimes it might show cards with very similar names that are not exactly the same as the one chosen in the comparison. We do try to filter out the wrong results as best we can, though.

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